Djokovic dropped the first set, but came storming back to take the second and a quick 4-2 lead in the final set. After an incredible rally from Murray, Djokovic had to once again battle back, winning his service game at 4-5 to avoid defeat.
He would go on to win the final three games of the deciding set.
The 2008 ATP World Tour Finals champion is looking for his second title at the circuit finale. After an impressive win over reigning U.S. Open champion Murray, it seems that the recently crowned world No. 1 is the favorite to dethrone two-time defending tourney winner Roger Federer this November.
What It Means
Will Novak Djokovic win the 2012 ATP World Tour Finals?
Djokovic now has two wins in Group A round-robin action, and has four set wins to just one defeat, meaning that fans will no doubt be seeing him in the semifinals this weekend. He will clinch a semifinal berth if Jo-Wilfried Tsonga beats Tomas Berdych in the second Group A match on Wednesday.
For Murray, the loss means that Friday's showdown with Tsonga is absolutely crucial to his hopes of advancing. Murray will need a win over the seventh-seeded French player in order to ensure he advances from the Group to Sunday's semifinals.
The win is Djokovic's second straight over Murray. The Serbian star beat Murray in the final of last month's Shanghai Rolex Masters, avenging a gut-wrenching loss to the Scotsman in last September's 2012 U.S. Open final.
Djokovic will play his final round-robin match on Friday against Tomas Berdych, who already lost to Andy Murray earlier in the week. Djokovic shouldn't have too many problems with the fifth-seeded Czech player.
Meanwhile, Murray must regroup quickly and prepare for his match against Tsonga, which can accurately be labeled a must-win for the 25-year-old world No. 3. Despite Wednesday's result, Djokovic and Murray are still the favorites to advance to the semifinals from Group A.
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